dead-code: remove unused enumerate index in emit_import_fixed_modules

Summary:
In StrictCodeGenBase.emit_import_fixed_modules(), the loop used
`for _i, name in enumerate(node.names)` but the index `_i` was
never used. Simplified to `for name in node.names`.

Reviewed By: mpage

Differential Revision: D97966076

fbshipit-source-id: 515f2dae58eff0d41e22e2e2dcc5b4f0d332402e

Author: alexmalyshev

cinderx/PythonLib/cinderx/compiler/strict/code_gen_base.py

@@ -383,7 +383,7 @@ def emit_import_fixed_modules(
         self.emit_binary_subscr()  # TOS = mod
 
         # Store all of the imported names from the module
-        for _i, name in enumerate(node.names):
+        for name in node.names:
             var_name = name.name
             asname = name.asname or var_name
             value = mod.get(var_name)